Mine car



Ma 's O. SANN MINE CAR Filed Dec. 5, 1951 2 Sheets-Sheet NVENTOR 012'0 Jar/m ATTORNEYS May 22, 1934. Q SANN 1,959,599

MINE CAR Filed Dec. 5, 1931 2 Sheets-Sheet 2 INVENTOR 0550 Samz ATTORN EYS co'Thetwo Patented May 22, 1934 ms can on Sann, Iotown, Pa. Application December 5, 1931, Serial No. 579,282

, 2 Claims. (01. 105-364) This invention,- relates to mine cars and particularly 'to improvements in axle construction thereof. The invention aims particularly to provide an improved form or axle which forms a I support for the bottom and parts of the side of thecar, the axle structure including a detachably mounted stub axle, the fastening means of which are accessible from the interior of the car so that when the stub axle becomes bent, badly l worn or otherwise damaged, it can be readily removed for replacement or repair without disturbing or dismantling'other parts of the car or its underframe. V

The invention will be fully apparent from the ll following specification when read in connection with the accompanying drawings. In the drawings:- Fig. 1- is a plan view of a mine car embodying my invention, many of the detailed features It) usually found in mine parts being omitted in the interest of clearness;-

Fig. 2 is a side elevation of Fig. 1 with parts broken away; r

Fig. 3 is a transverse section-on line 3--3 of Fig.

:6 2, showing the improved axle and its relationship to other structural parts oi the car;

Fig. 4 is an enlarged detail illustrating the preierred mounting for the detachable axle spindle. l0 Referring in detail to the drawings, the mine car includes any suitable form of under-framing and a central strengthening member such as in dioated generally at 10. These parts may follow the usual and standard design. The car will 85 include the usual bottom plates 12 and side plates 14. The characteristic feature oi'my improved construction resides in the design and arrangement of the axle portions; These axles areindicated as a whole at 16-16 .in the drawings,

axles are 01! substantially identical. constructiomand a description of one will suffice for both. As best shown in Fig. 3, the axle consists oi a substantially U-shaped member, the dropcenter-portion 18 of which serves to support the floor plates 12. It is also securedto the central longitudinally extending member 10. side, the axle has upstanding legs 20. These serve as supports for wheel hoods 22'which in effect constitute part or the car bottom. These hoods are flanged as at 24 and are riveted or otherwise secured to the side plates 14 of the car body. r

In the fillet-zone of the axle, where the leg 20 merges with and Joins the drop central portion 01 the axle, I provide an enlarged spindle pocket At each boss-26. This hub, as indicated in plan, in Figs.

3 and 4, projects into the interior of the car. This is important, as it provides easy access to the axle spindle 28, which is removablysecured to said boss by means of a key '30, which passes transa0 'versely through the boss and the spindle. The I end of the boss 26 is provided with an aperture 32 whic is aligned axially with the axis of the spindle 2 This spindle; as shown, forms a support for suitable roller bearings 34 mounted within 5 suitably formed sockets in the car wheel36. The wheel is held on the spindle by means oi a nut 38 secured to a suitable threaded shank formed on the extremity of the spindle, this nut being locked by a cotter pin-in a. known manner.

In the arrangement above described, it wm be appreciated that the mine car wheel is located below the hood 22 and each axle as a whole, is riveted or otherwise permanently incorporated in the under-frame and bottom structure of the car. 15

With the improved construction described, it is clear that in the event that the spindle 28 becomes badly worn, bent, or damaged, itcan be readily removed from the car without materially dismantling any part'of the underframe structure. so And such removal can be readily accomplished by relatively unskilled workmen. 7

To remove the spindle, it merely .necessitates either jacking up or blocking up the drop central portion of the axle and removing the key 30, 5 whereupon a drift pin can be inserted in the aperture 32 and the spindle driven out of the boss 26 by a sledge hammers And such removal can be effected without even dismantling the wheel until after the parts have been dismounted. It is noted that the operation of removing the spindle can be effected from the interior of the car. This greatly facilitates the work and constitutes an important feature of the invention.

While I have described quite precisely the details of the embodiment of the invention illus-- trated, it is to .be understood that various modifications'may be made by those skilled in the art without departing from the invention as.defined in the appended claims.

What I claim is:

1. A mine car, an axle extending transversely of the car having a dropped center portion with upstanding legs at each end thereof, spindle pocket bosses merging into each leg and said drop center portion, wheel supporting spindles removably seated in each of said bosses, keys securing said spindles to said pocket bosses, the axis of each spindle lying in a plane spaced above the top, of said drop center portion and each boss being apertured tor the insertion of a tool by means of which the spindle can be driven from its supporting boss and wheel hoods secured to said upstanding legs.

2. A mine car including supporting axles formed with central drop portions with upstanding legs at the ends thereof, a longitudinally extending i'rame, member secured to said axle, a bottom floor plate secured to said axle. wheel hoods secured 

